Reproduction and Organisms Study Guide Flashcards
Slide 1
Hair color and eye color are ______
Traits
Vocabulary
How a trait appears, or is expressed is called a
Phenotype
Vocabulary
Traits are passed from our parents
HEREDITARY
Vocabulary
The two alleles that control the phenotype of a trait are called the trait’s…
GENOTYPE
Vocabulary
How a trait appears, or is expressed is called a…
PHENOTYPE
Vocabulary
Different forms of a gene are called
ALLELE
Vocabulary
When the two alleles of a gene are different, its genotype is
HETERO-ZY-GOUS
Vocabulary
When the two alleles of a gene are the same, its genotype is
HOMO-ZY-GOUS
Vocabulary
One or Two dominant factors.
DOMINATE TRAIT
Vocabulary
Observed only when two recessive genetic factors are present in offspring.
RECESSIVE TRAIT
Vacabulary
The nucleus that contains threadlike structures is called…
CHRO-MO-SOME
Vocabulary
What is a section on a chromosome that has genetic information for one trait.
GENE
What is Gregor Mendel known for?
- Known as the father of genetics
- Answered the question of why children look like their parents.
Provide an example of a trait with more than two types.
EYES COLOR
Why did the first generation (100% purple) and second generation (75% purple, 25% white) of pea flowers turn out differently in Mendel’s experiments?
When hybrid plants cross-pollinated, the trait that had been missing in the first generation reappeared in the second generation.
